package com.gupt.reggie.config;/*
@author name
@data 2023/4/17-17:42
*/


import com.github.xiaoymin.knife4j.spring.annotations.EnableKnife4j;
import com.gupt.reggie.common.JacksonObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;

import java.util.List;

@Slf4j
@Configuration
@EnableKnife4j
public class WebMvcConfig extends WebMvcConfigurationSupport {

    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        log.info("配置文件已启动");
        registry.addResourceHandler("doc.html").addResourceLocations("classpath:/META-INF/resources/");
        registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/templates/backend/");
        registry.addResourceHandler("/front/**").addResourceLocations("classpath:/templates/front/");
    }

    /*
    扩展mvc的消息转换器  ：将java转化为json防止数据精度流失
     */

    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        log.info("消息转换器已启动");

        //创建消息转换器对象
        MappingJackson2HttpMessageConverter mappingJackson = new MappingJackson2HttpMessageConverter();
        //设置转换器 底层：用jackson将java转化为json
        mappingJackson.setObjectMapper(new JacksonObjectMapper());
        //将上边的转换器追加到mvc中
        converters.add(0,mappingJackson);  //0:表优先
    }

    @Bean
    public Docket createRestApi() {
        // 文档类型
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.gupt.reggie.controller"))  //扫描controller包结构
                .paths(PathSelectors.any())
                .build();
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("瑞吉外卖")
                .version("1.0")
                .description("瑞吉外卖接口文档")
                .build();
    }
}
